Abstract：
PURPOSE:The aim is to provide better understanding of carbon dioxide (CO2) elimination during ventilation for both the healthy and atelectatic condition, derived in a pressure-controlled mode. Therefore, we present a theoretical analysis of CO2 elimination of healthy and diseased lungs. METHODS:Based on a single-compartment model, CO2 elimination is mathematically modeled and its contours were plotted as a function of temporal settings and driving pressure. The model was validated within some level of tolerance on an average of 4.9% using porcine dynamics. RESULTS:CO2 elimination is affected by various factors, including driving pressure, temporal variables from mechanical ventilator settings, lung mechanics and metabolic rate. CONCLUSION:During respiratory care, CO2 elimination is a key parameter for bedside monitoring, especially for patients with pulmonary disease. This parameter provides valuable insight into the status of an atelectatic lung and of cardiopulmonary pathophysiology. Therefore, control of CO2 elimination should be based on the fine tuning of the driving pressure and temporal ventilator settings. However, for critical condition of hypercapnia, airway resistance during inspiration and expiration should be additionally measured to determine the optimal percent inspiratory time (%TI) to maximize CO2 elimination for treating patients with hypercapnia.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Pomprapa A,Schwaiberger D,Lachmann B,Leonhardt Sdoi
10.1007/s00421-013-2754-0subject
Has Abstractpub_date
2014-01-01 00:00:00pages
165-75issue
1eissn
1439-6319issn
1439-6327journal_volume
114pub_type
杂志文章abstract：:Single bout whole-body vibration (WBV) exercise has been shown to produce small but significant increases in oxygen consumption (VO(2)). How much more a complete whole-body exercise session (multiple dynamic exercises targeting both upper and lower body muscles) can increase VO(2) is unknown. The purpose of this study...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-1984-2
更新日期：2012-02-01 00:00:00
abstract：PURPOSE:To investigate the effects of lowering core (Tgi) and mean skin temperature (Tsk) concomitantly and independently on self-paced intermittent running in the heat. METHODS:10 males (30.5 ± 5.8 years, 73.2 ± 14.5 kg, 176.9 ± 8.0 cm, 56.2 ± 6.6 ml/kg/min) completed four randomised 46-min self-paced intermittent pr...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-019-04173-y
更新日期：2019-08-01 00:00:00
abstract：:This study compared the first and second exercise bouts consisting of electrically evoked isometric contractions for muscle damage profile. Nine healthy men (31 +/- 4 years) had two electrical muscle stimulation (EMS) bouts separated by 2 weeks. The knee extensors of one leg were stimulated by biphasic rectangular pul...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/s00421-009-1278-0
更新日期：2010-03-01 00:00:00
abstract：:This study investigated the impact of ice vests and hand/forearm immersion on accelerating the physiological recovery between two bouts of strenuous exercise in the heat [mean (SD), 49.1(1.3)°C, RH 12 (1)]. On four occasions, eight firefighters completed two 20-min bouts of treadmill walking (5 km h, 7.5% gradient) wh...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-010-1714-1
更新日期：2011-06-01 00:00:00
abstract：:This study aimed to determine metabolic and respiratory adaptations during intense exercise and improvement of long-sprint performance following six sessions of long-sprint training. Nine subjects performed before and after training (1) a 300-m test, (2) an incremental exercise up to exhaustion to determine the veloci...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2018-9
更新日期：2012-02-01 00:00:00
abstract：:The diving response is the sequence of cardiovascular, respiratory and metabolic adjustments produced by apnoea and further strengthened by cooling of the facial area and/or hypoxia. This study aimed at comparing the cardiovascular response to diving of trained divers with that of a control group. In this order, 14 tr...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2006-0
更新日期：2012-02-01 00:00:00
abstract：:Velocity at VO(2 max) (vV(.)O(2 max)) and peak treadmill velocity (PTV) are variables highly predictive of endurance performance. However, how these variables are affected by the menstrual cycle is unknown. The aim of this study was to assess the effect of the menstrual cycle on vV(.)O(2 max) and PTV. Ten, female runn...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-004-1272-5
更新日期：2005-03-01 00:00:00
abstract：:We measured diffusing capacity (DLCO), alveolar membrane properties (D (m)), capillary lung volume (V (c)), and alveolar volume (V (A) ) in 20 healthy subjects (12 males; age 32.4 +/- 13 (SD); BMI 21.7 +/- 3; non smokers) at total lung capacity (TLC) and at approximately 80, 60, and 40% TLC. In all subjects, D (m) inc...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-007-0625-2
更新日期：2008-03-01 00:00:00
abstract：:The aim of our study was to compare long distance runners to body mass index (BMI)- and age-matched healthy controls with respect to bone parameters at all relevant loaded and nonloaded skeletal sites. Furthermore, we assessed the effect of running volume on bone parameters. Twenty elite male runners (21.1 km<1:15 h; ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-005-0060-1
更新日期：2006-01-01 00:00:00
abstract：:Near-infrared finger photoplethysmograms were recorded and double-normalized pulse volumes (DNPV = DeltaV(b)/V(b); V(b) = total blood volume in the fingertip, DeltaV(b) = pulsatile component of V(b)) were calculated in ten subjects during, immersion of the contralateral hand in water at three different temperatures (4...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/PL00013788
更新日期：2000-01-01 00:00:00
abstract：:Contribution of skin thermal sensors under inert gas narcosis to the raising hypothermia is not known. Such information is vital for understanding the impact of narcosis on behavioural thermoregulation, diver safety and judgment of thermal (dis)comfort in the hyperbaric environment. So this study aimed at establishing...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2169-8
更新日期：2012-05-01 00:00:00
abstract：:We compared the ventilatory and circulatory responses during 20 s of light dynamic leg and arm exercises performed separately using dominant and non-dominant limbs. Seventeen subjects performed a 20-s single-leg knee extension-flexion exercise with a load of 5% of maximal muscle strength attached to the ankle. Fifteen...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-007-0500-1
更新日期：2007-10-01 00:00:00
abstract：PURPOSE:To examine and compare systemic arterial stiffness responses in humans to acute continuous and interval low-intensity exercise. METHODS:Fifteen healthy young men (21.2 ± 0.4 years) underwent non-exercise control (CON), continuous exercise (CE), and interval exercise trial (IE) in a randomized balanced self-con...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-014-2869-y
更新日期：2014-01-01 00:00:00
abstract：PURPOSE:This study examined the effects of combined cooling and lower body heat maintenance during half-time on second-half intermittent sprint performances. METHODS:In a repeated measures design, nine males completed four intermittent cycling trials (32.1 ± 0.3 °C and 55.3 ± 3.7% relative humidity), with either one o...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-019-04177-8
更新日期：2019-08-01 00:00:00
abstract：PURPOSE:Long static or intense dynamic apnoea-like high-altitude exposure is inducing hypoxia. Adenosine is known to participate to the adaptive response to hypoxia leading to the control of heart rate, blood pressure and vasodilation. Extracellular adenosine level is controlled through the equilibrative nucleoside tra...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-020-04523-1
更新日期：2021-01-01 00:00:00
abstract：:High-intensity exercise shares similarities with acute phase responses of inflammatory diseases. We investigated the influences of acute exercise on inflammatory markers, plasma pentraxin3 (PTX3) and serum high-sensitive C-reactive protein (CRP) (hsCRP). Nine healthy male subjects (41 ± 3 years old) participated. Each...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-010-1572-x
更新日期：2010-11-01 00:00:00
abstract：:Branched chain amino acids (BCAA), particularly leucine, have been suggested to be ergogenic for both endurance and strength/power performance. This study investigated the effects of dietary leucine supplementation on the exercise performance of outrigger canoeists. Thirteen (ten female, three male) competitive outrig...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-005-0036-1
更新日期：2006-08-01 00:00:00
abstract：:To clarify the clinical usefulness of the second derivative of the waveform of the fingertip photoplethysmogram (SDPTG), we examined the relationship between the pattern of the SDPTG waveform and risk factors related to atherosclerosis in 1,495 boys and girls aged 9-17 years. The fingertip photoplethysmogram and its s...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s004210100520
更新日期：2001-12-01 00:00:00
abstract：PURPOSE:The aim of this study was to compare the efficacy of three water immersion interventions performed after active recovery compared to active recovery only on the resolution of inflammation and markers of muscle damage post-exercise. METHODS:Nine physically active men (n = 9; age 20‒35 years) performed an intens...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-020-04481-8
更新日期：2020-12-01 00:00:00
abstract：:The percutaneous muscle biopsy technique is an important tool used in exercise and applied physiology to study human skeletal muscle structure, adaptation, and regeneration. One important use of this technique has been the assessment of ultrastructural muscle damage, especially in tissue samples obtained following str...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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更新日期：2000-11-01 00:00:00
abstract：:The compound muscle action potential (M wave) has been commonly used to assess the peripheral properties of the neuromuscular system. More specifically, changes in the M-wave features are used to examine alterations in neuromuscular propagation that can occur during fatiguing contractions. The utility of the M wave is...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
doi：10.1007/s00421-017-3788-5
更新日期：2018-03-01 00:00:00
abstract：PURPOSE:Many studies have failed to show that pre-sleep exercise has a negative effect on sleep onset. However, since only a moderate level of physiological excitement was observed at bedtime in these studies, it remains unclear whether a larger magnitude of physiologic excitement present at bedtime would disrupt sleep...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-014-2873-2
更新日期：2014-09-01 00:00:00
abstract：:This study tested the hypothesis that, as compared to whole-body bioelectrical impedance (BI) analysis, segmental BI analysis can estimate lean body mass (LBM) more accurately in a population with a large difference in muscularity. In addition to whole-body BI, which determines impedance (Z) between the wrist and ankl...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-004-1259-2
更新日期：2005-05-01 00:00:00
abstract：:Triglyceride-rich postprandial lipoproteins are known to activate endothelial cells in vitro, contributing to atherosclerosis. Endothelial microparticles (EMP) are membranous vesicles released into the circulation from vascular endothelial cells that permit cell activation to be monitored in vivo. The objective of the...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-009-1050-5
更新日期：2009-07-01 00:00:00
abstract：:To improve locomotor performance, coaches and clinicians encourage individuals with unilateral physical impairments to minimize biomechanical asymmetries. Yet, it is unknown if biomechanical asymmetries per se, affect metabolic energy expenditure in individuals with or without unilateral impairments during running. Th...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-018-3939-3
更新日期：2018-10-01 00:00:00
abstract：:The aim of the study was to compare the kinematics and the timing and amount of electromyographic (EMG) activity during the lat-pull down exercise performed on machines that afforded one, two, or three degrees of freedom for the movement. Seven healthy men (age 29.4 +/- 5.6 years) participated in the study. The exerci...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-010-1421-y
更新日期：2010-07-01 00:00:00
abstract：:The aim of this study was to examine the magnitude and the origin of neuromuscular fatigue induced by half-squat static whole-body vibration (WBV) exercise, and to compare it to a non-WBV condition. Nine healthy volunteers completed two fatiguing protocols (WBV and non-WBV, randomly presented) consisting of five 1-min...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-013-2590-2
更新日期：2013-06-01 00:00:00
abstract：PURPOSE:Current methods for estimating muscle motor unit (MU) number provide values which are remarkably similar for muscles of widely differing size, probably because surface electrodes sample from similar and relatively small volumes in each muscle. We have evaluated an alternative means of estimating MU number that ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-018-3811-5
更新日期：2018-04-01 00:00:00
abstract：PURPOSE:We investigated the effects of a 3-week dietary periodization on immunity and sleep in triathletes. METHODS:21 triathletes were divided into two groups with different nutritional guidelines during a 3-week endurance training program including nine twice a day sessions with lowered (SL group) or maintained (CON...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-016-3446-3
更新日期：2016-10-01 00:00:00
abstract：:The force generated during a maximal voluntary contraction (MVC) is known to increase by resistance training. Although this increase cannot be solely attributed to changes in the muscle itself, many studies examining muscle activation at peak force failed to detect neural adaptations with resistance training. However,...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-006-0380-9
更新日期：2007-04-01 00:00:00
